linux-kernel - [RFC PATCH 1/4] clk: mxs: imx28: Reparent gpmi clk to ref

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Message-Id: <20211217155512.1877408-2-dario.binacchi@amarulasolutions.com>
Date:   Fri, 17 Dec 2021 16:55:09 +0100
From:   Dario Binacchi <dario.binacchi@...rulasolutions.com>
To:     linux-kernel@...r.kernel.org
Cc:     Michael Trimarchi <michael@...rulasolutions.com>,
        Dario Binacchi <dario.binacchi@...rulasolutions.com>,
        Fabio Estevam <festevam@...il.com>,
        Michael Turquette <mturquette@...libre.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org
Subject: [RFC PATCH 1/4] clk: mxs: imx28: Reparent gpmi clk to ref_gpmi

From: Michael Trimarchi <michael@...rulasolutions.com>

ref_gpmi is connected that is sourced from pll0. This allow
to get nand clk frequency to handle edo mode 5,4,3

Signed-off-by: Michael Trimarchi <michael@...rulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
---

 drivers/clk/mxs/clk-imx28.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c
index 62146ea4d5b8..9e0b9f8e5885 100644
--- a/drivers/clk/mxs/clk-imx28.c
+++ b/drivers/clk/mxs/clk-imx28.c
@@ -243,6 +243,9 @@ static void __init mx28_clocks_init(struct device_node *np)
 
 	clk_register_clkdev(clks[enet_out], NULL, "enet_out");
 
+	/* GPMI set parent to ref_gpmi instead of osc */
+	clk_set_parent(clks[gpmi_sel], clks[ref_gpmi]);
+
 	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 		clk_prepare_enable(clks[clks_init_on[i]]);
 }
-- 
2.32.0